Armature winding machine

Abstract

The hereinproposed winding machine for the manufacture of the armature winding of electrical machines comprises a device for holding the armature core in place and a mechanism for placing the winding conductor in the armature slots, actuated by air or oil cylinders of reciprocating drives; said conductor installing mechanism is made up of two moving heads, each being arranged coaxially at the butt ends of the armature core and adapted to perform reciprocating motion in respect to said armature core when actuated by the air or oil cylinder common for both the heads; each of said heads has a shell with an annular redical groove on the side facing said armature core, said groove accommodating a set of levers with a rounded front working part for installing the conductor in the armature slots; said levers are positioned in respect to the slots of said armature core by means of a bush moving within the central bore of said shell and embracing a shaft of an oscillatory motion drive; the front part of said bush has a tapered surface holding a tapered ring with radial butt end slots facing said armature core, the slot surfaces being conjugated with the working surface of said levers; a device for placing the conductors in respective armature slots and shaping the end winding parts is provided between said armature core and said conductor installing mechanism, said device being actuated from said shaft of the oscillatory rotary motion drive.

What is claimed is: 
     
       1. A winding machine for the manufacture of an armature winding for an electrical machine on an armature core having a longitudinal axis, opposed butt ends, and armature slots extending between said butt ends, comprising: drive means including a driving shaft;   a device actuated by said drive means comprising a chuck for clamping the armature core;   a conductor installing mechanism actuated by said drive means and comprising two moving heads, said heads being arranged coaxially at opposite butt ends of said armature core: means for imparting a reciprocating motion to said heads along the axis of the armature core; each of said heads having a shell with a central bore and a circular radial groove on the side facing a corresponding butt end of said armature core;   a plurality of levers each having a rounded working part for installing the conductor, said levers being accommodated within said circular radial groove;   a bushing corresponding to each head for positioning said lever with respect to the armature slots, said bushing being slidably mounted for movement within said central bore of said shell of the head and in engagement with said drive shaft, said bushing having a tapered surface;   a tapered ring affixed to said tapered surface with radial butt end slots facing said armature core, surfaces of the butt end slots being in alignment with the working surfaces of said levers; and   a device disposed between said armature core and said heads of said conductor installing mechanism for distributing the conductors among the respective armature slots and shaping the end winding parts thereof adjoining said butt ends of said armature core.   
     
     
       2. A winding machine according to claim 1, wherein the device for distributing the conductors in respective armature slots and shaping the end winding parts of the armature winding comprises cups fixed coaxially at the ends of said drive shaft and coaxial with said armature core, the walls of each of said cups having a base and slits widening towards said base so as to form a toothed rim adjoining a butt end of said armature core.